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Protein concentrates and isolates, and processes for the production thereof

a technology of protein concentrate and concentrate, which is applied in the field of protein concentrate and protein isolate, can solve the problems of uneconomical removal and recovery of salt, unattractive commercial use of defatted meal, and difficult removal of canola protein in aqueous solution, and achieves the effect of high quality

Active Publication Date: 2010-06-03
DSM IP ASSETS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]Herein, a process for the production of protein concentrates and protein isolates is disclosed. In addition, protein concentrates and protein isolates produced in accordance with the processes of the disclosure are also disclose...

Problems solved by technology

The fiber and antinutritional factors present in the protein render the defatted meal unattractive for commercial uses.
This results in the canola protein dissolving in the aqueous solution, while the fiber is insoluble.
However, the salt is difficult and uneconomical to remove and recover from the resultant canola protein solution.

Method used

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  • Protein concentrates and isolates, and processes for the production thereof
  • Protein concentrates and isolates, and processes for the production thereof
  • Protein concentrates and isolates, and processes for the production thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1 (

Example 1(b)

Effect of Heat Treatment on Canola Seed (Brassica juncea) at Temperatures Between 100° C.-130° C.

[0718]Five samples containing about 4 kg (about 20 kg in total) of canola seed were adjusted from an original moisture content of about 6.25% to about 11% by adding water to the canola seed in a plastic pail with manual agitation for a few minutes. The canola seed in the pails was then covered and tempered overnight in the laboratory.

[0719]After the canola seed had been tempered overnight, five samples containing about 4 kg of the tempered seed (about 20 kg in total) were subjected to individual heat treatments with a combination of high temperatures and short residence times using a lab scale as listed in Table 2. After heat treatment, the five samples (about 4 kg each) of the heat treated canola seeds were flaked using a lab flaking mill, and then pressed. The pressed oils were analyzed for sulfur, phosphorus and FFA contents. The pressed cakes were stored in a freezer.

[072...

example 2

Protein Concentrate of about 65% Protein

(a) Defatted Meal

[0733]Approximately 4 kg of canola seed (B. juncea) was adjusted from the original 6.25% moisture to 11% moisture by adding water to canola seed in a plastic pail with manual agitation for a few minutes. The canola seed in the pail was then covered and tempered overnight in the laboratory. The tempered canola seed was then heat treated at 100° C. for 15 seconds.

[0734]After heat treatment, the canola seed was flaked using a lab flaking mill and then pressed. The pressed cake was stored in a freezer before solvent extraction. The pressed oil was recovered and stored in a freezer. The pressed cake was extracted with 6-8 liters of methyl pentane at about 58-67° C. for 5 hours using a lab scale Soxhlet system. The extracted oil was recovered by evaporation and desolventization to remove the solvent from the miscella under vacuum at 60° C. The extracted oil was stored in a freezer. The methyl pentane extracted meal or defatted meal ...

example 3

Protein Concentrate of about 70% Protein

(a) Ethanol Washing and Screening

[0737]The process for preparation of the protein-enriched meal was the same as in Example 2 except for (1) canola seed was cooked at 80° C. for 25 minutes before pressing, and (2) the defatted meal was milled using a disc mill before screening through a 60 US mesh screen as described below.

[0738]Approximately 1 kg of protein-enriched meal was mixed under homogeneous agitation with 6 kg of 80% (v / v) ethanol at 50° C.±5° C. for 1 hour, which was followed by screening the mixture through a 40 mesh US screen to remove fiber. The screened mixture was centrifuged at 4,000 g force using a lab centrifuge for 15 minutes to separate the sugar extract from the protein solids. The protein-solids were mixed under homogeneous agitation with 6 kg of 80% (v / v) ethanol at 50° C.±5° C. for 0.5 hour. The washed protein solids was separated from the sugar extract by centrifugation at 4,000 g force for 0.5 hour. The protein solids ...

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Abstract

Protein concentrates and protein isolates, in addition to processes for the production of protein concentrates and protein isolates, are disclosed. In particular, the disclosure relates to the removal of fiber from an oilseed meal using low g-force centrifugation.

Description

PRIORITY INFORMATION[0001]This application is a continuation-in-part of U.S. application Ser. No. 12 / 467,227, filed May 15, 2009, which claims the benefit of U.S. Provisional Application Nos. 61 / 053,858 and 61 / 099,783 filed on May 16, 2008 and Sep. 24, 2008, respectively, and entitled PROCESS FOR THE PRODUCTION OF PROTEIN CONCENTRATES AND PROTEIN ISOLATES, the contents of which of which are expressly incorporated herein by reference.FIELD OF THE DISCLOSURE[0002]The present disclosure relates to protein concentrates and protein isolates comprising combinations of proteins, peptides and amino acids, as well as processes for their production. In particular, the disclosure relates to a process for removing fiber from an oilseed meal to produce edible protein products.BACKGROUND[0003]Oilseeds typically contain from about 20 percent oil to about 50 percent oil by weight, with the percentages varying with the type of oilseed. Generally, the seed is pressed, with or without a prior heat tre...

Claims

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Application Information

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IPC IPC(8): A23J1/14
CPCC07K14/415A23J1/14
Inventor TANG, QINGNONG NELSON
Owner DSM IP ASSETS BV
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